Same as he did during his career, probably - people seem to forget as hard as prime Roddick blasted the ball, prime Federer usually ate pace for lunch AND read Roddick's serve better than anyone.

That said, Roddick probably would have Wimbledon 04 if not for the rain delay - up until that point Federer wasn't making any tactical adjustments to handle Roddick's power off the ground. A shame, too - Federer was having some real issues dealing with Andy's monster FH that day,